So what are his actual technical accomplishments? Other than marketing and promising FSD is ready tomorrow or we'd land on Mars in 2026, or getting Billions from tax payers in subsidies that allowed him to be as successful as he is ---- what are his actual technical accomplishments?

Has he invented anything, e.g. a new space bracket, or some better radiation shielding or anything that's in heavy use now at SpaceX, Tesla, xAI, etc?

EDIT: clarity